When we last covered Micah Dowty’s efforts in creating a software USB host for the Propeller, he had just gotten it working well enough to talk to a $2 Bluetooth dongle. Flash forward a few months, and he now has a running Propeller Bluetooth Stack, all implemented on top of the software USB port. In the above video, he demonstrates how to turn a propeller into a wireless serial port using the Bluetooth Serial Port. Of course, you could just buy a $30 adapter that does everything for you, but that’s more expensive and not nearly as fun!